Fun build around, but at Mythic more for constructed formats I guess, and then it’s just 1 mana cantrips.dec.
Yeah it reminds me a little bit of [[Monastery Mentor]] which is also Standard legal. This triggers on all spells but only after your first and only on your turn which kinda stinks.
I think it could really create an overwhelming board in the right deck, and maybe it goes into UW tempo in Standard as Mentors 5-X?